Brick-forming die.



L. WARSTLER & P. F. LOICHOT.

BRICK FORMING DIE.

APPLICATION FILED AUG.25, I913.

Patented May 25, 1915.

G manure THE NORRIS PETERS 60., FHDTO-LITHCL, WASHINGTON, D. c

. struction is concerned.

STATES PATENT OFFICE.

LEVI WARSTLER AND PAULI. LOICHOT, OF LOUISVILLE, OHIO, ASSIGNOBS TO THE LOUISVILLE MAGHIN E COMPANY, OF LOUISVILLE, OHIO, A CORPORATION OF OHIO.

BRICK-FORMING DIE.

To all whom it may concern:

Be it known that we, LEVI WARSTLER and PAUL F. LOICHOT, citizens of the United States, residing at Louisville, in thecounty of Stark and State of Ohio, have invented certain new and useful Improvements 1n Brick-Forming Dies, of which the following is a specification.

Our invention relates to that class of brick forming dies designed to produce brick more especially paving brick.

The objects of the present invention are, first, to provide a brick forming die, by means of which lugs or ribs can be formed upon the face or faces of the brick; second, to provide means whereby the laminations formed in the column of clay during the time it is being forced by a feed auger through the die may be broken or removed; and third, to provide means whereby the manufacturers name or other identification may be placed or formed. upon the face or faces of the brick. These objects, together with other objects, readily apparent to those skilled in the art, we attain by the construction illustrated in the accompanying drawings, although our invention may be embodied in a variety of other mechanical forms, the construction illustrated being chosen by way of example.

In the accompanying drawing Figure 1 is a vertical longitudinal section showing the different parts properly arranged withreference to each other. Fig. 2 is a front end view. Fig. 3 is aview showing a portion of the die and illustrating a quantity of clay formed into a column to be cut into proper lengthsto form brick of any desired length. Fig. 4 is a view showing a portion of one of the die walls and its wear plate or casing. Fig. 5 is a detachedview of one of the corner steam distributing plates. Fig. 6 is a section on line 66, Fig. 4. Fig. 7 is a transverse 'sectionof a brick.

Similar numerals of reference indicate corresponding parts in'all the figures of the drawing.

*In the accompanying drawing, 1 represents the augeror feed-casing which is of the usual construction and forms no part of the present invention so far as detailed con- Within' the auger casing 1 are located the usual auger blades 2 mounted upon the rotary shaft 3, which parts are all common and well understood;

Specification of Letters Patent.

Patented May 25, 1915.

Application filed August 25, 1913. Serial No. 786,368.

7 To the auger casing 1 is attached the section 4 by means of suitable clamping bolts 5, and to the outer end of the section a is attached the die holding flange 6 by means of suitable bolts 7 and to the outer end of the die'holding'fiange 6 is attached the die plate 8 by means of suitable bolts 9. The die 10 may be a single die or a double die as desired.

In practice it is preferable to form a double die so that two columns of clay may be moved through the die, thereby increasing the output of the die proper. It is of importance that the brick when placed in position be spaced a short distance apart so that the proper binding material can be poured between the brick. This binding material is usually composed of ordinary tar and while in-a heated and plastic or liquid condition is poured upon the upper surface or upon the brick and permitted to find its way between the brick and afterward be. come hardened whereby the brick are securely and firmly cemented together. For thepurpose of spacing thebrick when set in position projections or lugs should be and must necessarily be formed upon the face or faces of the brick- In order to form such projections or lugs we provide a roll or rollers 11 which are mounted upon the shafts 12, said shafts'being journaled in the bars 13, which bars may be secured to the die 10 in any convenient and well known manner, or if desired the rollers 11 may be loosely mounted upon the shafts 12 as the only object desired to be accomplished is to provide somemeans by which the rollers-11 will be rotated by the movement of the column of clay. It will be understood that the peripheries of the rollers should be so located that they will come in contact with the face or faces of the flow of clay. The rollers 11 are provided upon their peripheries with the recesses or depressions 14, which recesses or depressions are formed of a shape and size to correspond with the shape and size of the Y projections or ribs 15 to be formed upon the faces of the plastic clay as'it leaves the die are received into the recesses 14 by which arrangement the projections 15 are formed without flattening said ribs when formed by means of the grooves.

For the purpose of providing a suflicient amount of clay to form the projections or ribs 15, the die 10 is provided with the channels or grooves 16 formed of a depth to correspond with the depth of the depressions 14 formed in the peripheriesof the rollers 11. in order to arrange the projections 15 in staggered relationship upon the face or faces of the brick the depressions l lshould also be located in staggered relationship as best illustrated in Fig. 8. For the purpose of preventing the inner faces of the die from rapidly wearing,,thereo.y changing the size and exact shape and relative location of the horizontal and vertical faces of the die, said die is provided with thin lining 17 which lining is formed of sheet metal designed to resistjrapid Wearing by the movement of the flow of clay whilepassing along and upon the faces of the metal lining 17.

. It will be'understood that it is impossible to prevent all'wear, owing to the fact that clay or shalew is more or less gritty or sandy and the sliding action of the column of clay uponlthe die or lining has a tendency to grind or cut the metal. It will be understood that when the lining-17 becomes worn, new lining can be substituted at small expense, which lining is held in fixed relationship with reference to the die 10 by'means of the flange 18, which is bent over and upon the beveled faced flanges of the die lO. In order to hold the lining in fixed relative relationship, it is preferable to provide some mechanical means for securing the lining,

which mechanical meansmay be an ordinary screw located through the aperture 19 formed in the flange 18. It will also be understood that the lining 17 should be provided with the channels 20, which channels are stamped in the lining and fit into the grooves 16 as best illustrated in Fig. 6.

Owing to thefact that the paving of highways is largely under the control of State oflicials or municipal officials, and that certain standards are required, the brick are put to severe tests by specially designed machines known as rattlers, which tests are for the purpose of determining the quality of brick and their resistance as to abrasion and imperfections of any kind which would make them unfit for paving purposes, and in order that proper identification of the brick may be had it has become customary for the different manufacturers of paving brick to impress upon at least one face of the brick the manufacturers name or'some name by which the brick may be identified.

In order to impress in the face of the brick the proper name which may be a trade-name or amanufa'cturers name the rollers 11 are provided upon their vperipheries with the necessary letters or marks designed to impress the identification name or mark. In the drawings we have illustrated the peripheries of'the rolls ll provided with the letters going to make up the word Novelty out the illustration of the letters are simply shown conventionally in the present instance and they are not shown and described as constituting a trade name, but it will be understood that a trade-name may be impressed upon the faces, of the brick if clesired. It will be understood that the characters to be located upon the peripheries of the rollers should be raised in order that depressions be made in the faces of the brick.

It is well understood that as the flow of clay passes through the die the greatest amount of friction is at the corners of the die and unless some provision is made to equalize the friction there is a certain lagging of the flowvof clay at its corners and a tendencv of the central and side portions to move in advanceof the corner portions. in order to overcome and to a great extent equalize the friction we provide means for lubricating the corners of the dies, which lubrication is commonly done by steam, but

we-havelearned fromexperience that when steam ispermitted to come in direct contact with the corners of the flow of clay as it is delivered from-a steam pipe it has a tendency to soften the .corners, thereby more or less'injuring or changing the exact form designed to be given to the flow ofclay by allowed to escape and find its way. between the outer faces of the plates 21 and the inner I oeveled faces of the die 10.-

It will be understood that by reason of the pressure of the steam, a sufficient amount will findrits way out of the steampipes 22 to provide proper lubrication in all directions, but owing to the fact that the exhaust ends of the steam pipes 22 are covered the steam cannot be forced. directly against the corners of the flow of clay but finds its way 1 in thin strata against the corners ofthe flow of clay. It is also well understood that by reason of the rotation of the auger blades laminations are produced, which laminations are injurious and unless broken or removed the brick are liable to and frequently do 7 break along the lines of the laminations. In order to remove the laminations and pres vent the breaking of the brick by actual use in pavements, we provide a series of wires 23, which are preferably located 'in sets and the sets located at right angles to each other or substantially so. These wires are connected to the frame 24* in any convenient manner.

For the purpose of conveying steam for lubricating purposes the pipes 24 are provided which pipes lead to and are connected in the usual manner, the pipes being shown conventionally and they should be provided with the ordinary lead pipes 25, which pipes are provided with the regulating valves 26, the arrangement of the various steam pipes are immaterial andare shown conventionally, but the arrangement may be varied without departing from the nature of our invention.

It will be understood that some means must be provided to connect the corner plates 21 to the die, and in order to properly connect the plates they may be provided with the aperture 27 through which aperture a screw may be passed into proper screw threaded apertures formed in the die 10. It will be further understood that rotary motion is imparted to the rollers 11 by means of their contact upon the face or faces of the moving column of clay, and that no auxiliary means is necessary to impart rotary motion.

It is desirable that brick designed for paving purposes be provided with bevel or rounded corners and in order to form the brick as illustrated in Fig. 7 the roller or being rollers 11 are provided at their ends with the flanges 11 the contact faces of said flanges curved to correspond with the curvature to be given to the corners of the brick. These flanges l1 may be formed integral with the rollers 11 or they may be made separate andattached in any convenient and well known manner.

Having fully described our invention what we claim as new and desire to secure by Letters Patent, is

1. In a brick forming die of the class described, the combination of an auger frame and casing, a die held in fixed relationship with said auger casing, said die provided with grooves, rollers located in close proximity with the delivery end of the die, said rollers provided upon their peripheries with elongated depressions, said depressions located in alinement with the grooves formed in the die.

2. In a brick forming die of the class described, the combination of an auger frame and easing, a die held in fixed relationship with said auger casing, said die provided with grooves, rollers located in close proximity with the delivery end of the die, said rollers provided upon their peripheries with elongated depressions, said depressions located in alinement with the grooves formed in the die, said depressions formed of a depth substantially equal to the depth of the grooves formed in the die.

3. In a brick forming die of the class described, the combination of an auger frame and easing, a die held in fixed relationship with said auger casing, said die provided with grooves, a roller located in close proximity with the delivery end of the die, its periphery provided with elongated depressions located in alinement with the grooves in the die, said roller provided with flanges upon its ends, said flanges adapted for contact with the plastic clay.

In testimony that we claim the above, we.

have hereunto subscribed our names in the presence of two witnesses.

LEVI WARSTLER. PAUL F. LOIOHOT. Witnesses:

Nuns A. Sroivsnnnnn, F. W. BOND.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

